zeitlich
time-related
Relating to time; concerning time.
Wir müssen den zeitlichen Rahmen für das Projekt genau festlegen.
We need to define the time frame for the project precisely.

temporal / time-related
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time-related
Relating to time; concerning time.
Wir müssen den zeitlichen Rahmen für das Projekt genau festlegen.
We need to define the time frame for the project precisely.

The adjective 'zeitlich' (temporal/time-related) is derived from the noun 'die Zeit' (time). The ending '-lich' turns the noun into an adjective with the meaning 'concerning time'.
Können wir die Besprechung zeitlich etwas nach vorne verschieben?
Can we move the meeting a little earlier in terms of time?
'Zeitlich' can stand before a noun as an adjective or describe a verb or another adjective as an adverb. As an adverb, it remains unchanged.
Der zeitliche Abstand zwischen den beiden Ereignissen war gering.
The time interval between the two events was short.
In the meaning 'concerning time', 'zeitlich' is often used in fixed combinations, for example 'der zeitliche Ablauf' (the chronological sequence), 'die zeitliche Reihenfolge' (the chronological order), or 'unter zeitlichem Druck stehen' (to be under time pressure).
Bitte bringen Sie die Dokumente in die richtige zeitliche Reihenfolge.
Please put the documents in the correct chronological order.
When 'zeitlich' means 'temporary', it very often appears together with participles such as 'begrenzt' (limited) or 'befristet' (fixed-term/limited in duration). This combination is typical for contracts and formal announcements.
Das Jobangebot ist zeitlich auf sechs Monate begrenzt.
The job offer is limited to six months.
permanent / lasting
'dauerhaft' and 'zeitlich' can form an opposite pair when 'zeitlich' is used in the sense of 'zeitlich begrenzt' (limited in time). 'dauerhaft' then means that something continues to exist for a long time or without a fixed end. 'zeitlich', by contrast, emphasizes that something applies only for a specific duration. Important: 'zeitlich' can also simply mean 'relating to time'. The contrast with 'dauerhaft' only arises with the meaning 'limited'.

Der Vertrag ist zeitlich begrenzt und endet im Dezember.
The contract is limited in time and ends in December.
Für den Kurs gibt es dauerhaft einen Raum im zweiten Stock.
There is a permanent room for the course on the second floor.